Tyler Posey strums a few chords on his guitar while on break from filming an anti-bullying PSA for My Life My Power at Sun Valley High School in California on Friday.

Along with Lost in Kostko, several young celebs came out to support including Booboo and Fivel Stewart, Cassie Scerbo, Vanessa Lengies, Stella Hudgens, Keana, Lil’ Romeo, Renee Olstead, and The Lying Game‘s Rick Malambri.

My Life My Power is a charity founded by undefeated WWE wrestler Daniel Puder. It not only promotes to overcome bullying, but also self-empowerment of youth through goal setting, mentoring, and character building.

The PSA — filmed entirely in cutting edge 3-D — will debut during a star-studded premiere on Saturday, October 22nd at AMC-16 in the Burbank Promenade in partnership with the Mark Harris produced 3-D film, IDanceMachine.

Stay tuned for a preview of the PSA exclusively on JJJ! 10+ pics inside…